Improved double-seaming machine



NITED STATES PATENT TEICE.

JAS. WILSON, O. GREEN, AND WVM. WILSON, JR., OF WILMINGTON, DEL.

Specification forming part of Letters Patent N0. 23,735, dated April 19,1859.

To all whom, t may concer/1,

Be it known that we, JAMES WILSON, CHARLEs GREEN, and WILLIAM WILsoN, Jr., of Wilmington, in New Castle county and State of Delaware, haveinvented a new and useful Double Seaming Machine; and we do declare thefollowing to be a full and exact description of the same, referencebeing had to the accompanying drawings, in which- Figure lis a View ofthe machine, Fig. 2, a view oaf the different stages ofthe jointproduced by the machine. Figs. 3, 4, 5, and 6 are different rollers.

Hitherto it has been possible to doubleseam one end of a keg (metallic)by inserting a mandrel or other instrument suitable for the purpose. Theobject of our improved machine is to enable both heads to bedoubleseained, which by the old process was impossible unless a largeopening was left in one head.

This machine consists of a stand, A, a vertical shaft, B B, upon whichare a tight and loose pulley, C C. Upon the lower end of this shaft is ametallic disk, D. A second disk, E, is placed directly under the disk D,

' and is connected with a t-readle, F, by which it is elevated ordepressed. At the upper end of this shaft is a spring or other suitablecontrivance for the purpose of pressing the upper disk downward. Astand, G, supports a single burring-pulley, H, planing-down pulleys I,double burring-pulleys K, and a iinishing-pulley, L.

The burring-pulley H is shown in Fig. 4. It consists of a smallpulley-wheel, beveled upon its lower edge in such a manner that theiiange u pon the head of the keg may be bent upon the flange of thecylinder, as shown at O in Fig. 2.

The planing-down pulleys I consist of two small pulley-wheels placed atright angles to each other, as shown in Fig. 6. Their use is to pressthe flange of the head bent down by the burring-pulley firmly upon theflange of the cylinder, as shown at I), Fig. 2.

The double burring-pulleys K consist of two pulleys, as shown in Fig. 5.The upper and larger pulley-wheel, K, has a groove upon its edge, inwhich the smaller and lower pulleywheel, K, moves. The axis of thislower pulley-wheel is placed at an angle to that of the upperpulley-wheel. The use of this pair of pulley-wheels is to bend the jointproduced by the two preceeding operations at an angle, as shown at Q inFig. 2.

The finishing-pulley L consists of a single pulley-wheel, as shown inFig. 3, having its edge grooved. Its function is to press the joint rmlyupon the side of the cylinder, as shown at R in Fig. 2. 1

The planing down pulleys I, the double burring-pulleys K, and theiinishing-pulley L are constructed in such a manner that they may bepushed in and out by means of a lever, screw, or their equivalent. v

The mode of using this machine is as follows: A cylinder of sheet-ironor any suitable substance is first made, either plane or corrugated, andprovided with a flange upon its edge. -Two heads are then struck bymeans of a die from a' thin plate of metal. Upon these heads iianges areleft double the width of those upon the cylinder. This cylinder, withthe heads laid in a proper position, is then placed between the twodisks D and. E.

By means of the treadle the lower disfkvisV pressed firmly upward, thus'holding-the cylinder tight between them. TheV cylinder is then made torevolve by the friction between it and the upper disk, to which themotive power is applied. .All the wheels, with the exception of theburring-pulley, are then drawn back. The flange of the head is presseddownward, in order that the planing-down pulleys, which are next pushedinward, may press it firmly upon the iiange of the head by the onepulley running above and the other running below the ange. Theplaning-down pulleys are then withdrawn. The next operation is to pushthe double burring-pulleys inward,which bend the single seam justproduced in the two proceding operations downward, causing it to form anacute angle with the side of the cylinder. This pulley being withdrawn,the finishingpulley is pressed inward, which presses this bent seamfirmly against the side of the cylinder. The keg is then inverted andthe other head fastened in the same manner. By these means a double seamis produced on both ends finishing-pnlleyL in the mannerl and for the ofthe keg. purpose substantially as above described. Having thus describedour improvement, JAMES WILSON.

what We Claim as our invention, and desire CHARLES GREEN.

to secure by Letters Patent, iss XVM. YWILSON, JR.

The combination of the disks E and D and Witnesses:

the burring-pulley H, the planing-down pul- WVM. BREOK,

leys I, the double burring-pulleys K, and the JosnPI-I NVALKER.

